
1.DeviceNet FUNCTIONS SETTING B-64044EN/01
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Actions upon detection of an error
It is recommended that COMMON STATUS or DETAIL STATUS be
used with the ladder program to check if an error occurs.
In addition, for safety operation of the system, be sure to set DI
DATA IN FAILURE to specify whether DI data is restored to the
state immediately before an error or cleared to 0 when I/O
communication stops due to an I/O communication error or other
error.
A flowchart for error detection is shown in Fig. 1.3(d).
Bit 0
ON
Bit 1
ON
yes
Yes
no
no
正
の
の
Bit 2 is on.
Read "Master function status
1"
I/O
communication
error
Read "Details on the slave
communication state"
yes
Setting errors
- Verification error
- Failure in the
setting of the
communication
cycle time
no
Bit 0
Bit 0 is on.
Read "DeviceNet MPU status 1"
Bit 1
ON
Bit 1 is on.
Occurrence of an
error
Normal Other errors
- Memory error
- Busoff error
- MAC ID
duplication
- Network power
failure
- Transmission
error
Fig. 1.3(d) Flowchart